2a+5=7

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Solution for 2a+5=7 equation: 


a in (-oo:+oo)

2*a+5 = 7 // - 7

2*a-7+5 = 0

2*a-2 = 0 // + 2

2*a = 2 // : 2

a = 2/2

a = 1

a = 1

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